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EP1002790A1 - Analogues de sphingosine - Google Patents

Analogues de sphingosine Download PDF

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Publication number
EP1002790A1
EP1002790A1 EP98907195A EP98907195A EP1002790A1 EP 1002790 A1 EP1002790 A1 EP 1002790A1 EP 98907195 A EP98907195 A EP 98907195A EP 98907195 A EP98907195 A EP 98907195A EP 1002790 A1 EP1002790 A1 EP 1002790A1
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Prior art keywords
group
tkr1785
compound
protecting
hydrogen
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German (de)
English (en)
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EP1002790A4 (fr
EP1002790B1 (fr
Inventor
Kazutoh Takesako
Toru Kurome
Naoyuki Awazu
Ikunoshin Kato
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Takara Bio Inc
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Takara Shuzo Co Ltd
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    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D307/00—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom
    • C07D307/02—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom not condensed with other rings
    • C07D307/26—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom not condensed with other rings having one double bond between ring members or between a ring member and a non-ring member
    • C07D307/30—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom not condensed with other rings having one double bond between ring members or between a ring member and a non-ring member with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms
    • C07D307/32—Oxygen atoms
    • C07D307/33—Oxygen atoms in position 2, the oxygen atom being in its keto or unsubstituted enol form
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C215/00—Compounds containing amino and hydroxy groups bound to the same carbon skeleton
    • C07C215/02—Compounds containing amino and hydroxy groups bound to the same carbon skeleton having hydroxy groups and amino groups bound to acyclic carbon atoms of the same carbon skeleton
    • C07C215/04—Compounds containing amino and hydroxy groups bound to the same carbon skeleton having hydroxy groups and amino groups bound to acyclic carbon atoms of the same carbon skeleton the carbon skeleton being saturated
    • C07C215/06—Compounds containing amino and hydroxy groups bound to the same carbon skeleton having hydroxy groups and amino groups bound to acyclic carbon atoms of the same carbon skeleton the carbon skeleton being saturated and acyclic
    • C07C215/10—Compounds containing amino and hydroxy groups bound to the same carbon skeleton having hydroxy groups and amino groups bound to acyclic carbon atoms of the same carbon skeleton the carbon skeleton being saturated and acyclic with one amino group and at least two hydroxy groups bound to the carbon skeleton
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C215/00—Compounds containing amino and hydroxy groups bound to the same carbon skeleton
    • C07C215/02—Compounds containing amino and hydroxy groups bound to the same carbon skeleton having hydroxy groups and amino groups bound to acyclic carbon atoms of the same carbon skeleton
    • C07C215/22—Compounds containing amino and hydroxy groups bound to the same carbon skeleton having hydroxy groups and amino groups bound to acyclic carbon atoms of the same carbon skeleton the carbon skeleton being unsaturated
    • C07C215/24—Compounds containing amino and hydroxy groups bound to the same carbon skeleton having hydroxy groups and amino groups bound to acyclic carbon atoms of the same carbon skeleton the carbon skeleton being unsaturated and acyclic
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C229/00—Compounds containing amino and carboxyl groups bound to the same carbon skeleton
    • C07C229/02—Compounds containing amino and carboxyl groups bound to the same carbon skeleton having amino and carboxyl groups bound to acyclic carbon atoms of the same carbon skeleton
    • C07C229/04—Compounds containing amino and carboxyl groups bound to the same carbon skeleton having amino and carboxyl groups bound to acyclic carbon atoms of the same carbon skeleton the carbon skeleton being acyclic and saturated
    • C07C229/22—Compounds containing amino and carboxyl groups bound to the same carbon skeleton having amino and carboxyl groups bound to acyclic carbon atoms of the same carbon skeleton the carbon skeleton being acyclic and saturated the carbon skeleton being further substituted by oxygen atoms
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C229/00—Compounds containing amino and carboxyl groups bound to the same carbon skeleton
    • C07C229/02—Compounds containing amino and carboxyl groups bound to the same carbon skeleton having amino and carboxyl groups bound to acyclic carbon atoms of the same carbon skeleton
    • C07C229/30—Compounds containing amino and carboxyl groups bound to the same carbon skeleton having amino and carboxyl groups bound to acyclic carbon atoms of the same carbon skeleton the carbon skeleton being acyclic and unsaturated
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C237/00—Carboxylic acid amides, the carbon skeleton of the acid part being further substituted by amino groups
    • C07C237/02—Carboxylic acid amides, the carbon skeleton of the acid part being further substituted by amino groups having the carbon atoms of the carboxamide groups bound to acyclic carbon atoms of the carbon skeleton
    • C07C237/04—Carboxylic acid amides, the carbon skeleton of the acid part being further substituted by amino groups having the carbon atoms of the carboxamide groups bound to acyclic carbon atoms of the carbon skeleton the carbon skeleton being acyclic and saturated
    • C07C237/08—Carboxylic acid amides, the carbon skeleton of the acid part being further substituted by amino groups having the carbon atoms of the carboxamide groups bound to acyclic carbon atoms of the carbon skeleton the carbon skeleton being acyclic and saturated having the nitrogen atom of at least one of the carboxamide groups bound to an acyclic carbon atom of a hydrocarbon radical substituted by singly-bound oxygen atoms
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C237/00—Carboxylic acid amides, the carbon skeleton of the acid part being further substituted by amino groups
    • C07C237/02—Carboxylic acid amides, the carbon skeleton of the acid part being further substituted by amino groups having the carbon atoms of the carboxamide groups bound to acyclic carbon atoms of the carbon skeleton
    • C07C237/22—Carboxylic acid amides, the carbon skeleton of the acid part being further substituted by amino groups having the carbon atoms of the carboxamide groups bound to acyclic carbon atoms of the carbon skeleton having nitrogen atoms of amino groups bound to the carbon skeleton of the acid part, further acylated
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C251/00—Compounds containing nitrogen atoms doubly-bound to a carbon skeleton
    • C07C251/02—Compounds containing nitrogen atoms doubly-bound to a carbon skeleton containing imino groups
    • C07C251/04—Compounds containing nitrogen atoms doubly-bound to a carbon skeleton containing imino groups having carbon atoms of imino groups bound to hydrogen atoms or to acyclic carbon atoms
    • C07C251/06—Compounds containing nitrogen atoms doubly-bound to a carbon skeleton containing imino groups having carbon atoms of imino groups bound to hydrogen atoms or to acyclic carbon atoms to carbon atoms of a saturated carbon skeleton
    • C07C251/08—Compounds containing nitrogen atoms doubly-bound to a carbon skeleton containing imino groups having carbon atoms of imino groups bound to hydrogen atoms or to acyclic carbon atoms to carbon atoms of a saturated carbon skeleton being acyclic
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C271/00—Derivatives of carbamic acids, i.e. compounds containing any of the groups, the nitrogen atom not being part of nitro or nitroso groups
    • C07C271/06—Esters of carbamic acids
    • C07C271/08—Esters of carbamic acids having oxygen atoms of carbamate groups bound to acyclic carbon atoms
    • C07C271/10—Esters of carbamic acids having oxygen atoms of carbamate groups bound to acyclic carbon atoms with the nitrogen atoms of the carbamate groups bound to hydrogen atoms or to acyclic carbon atoms
    • C07C271/22—Esters of carbamic acids having oxygen atoms of carbamate groups bound to acyclic carbon atoms with the nitrogen atoms of the carbamate groups bound to hydrogen atoms or to acyclic carbon atoms to carbon atoms of hydrocarbon radicals substituted by carboxyl groups
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D263/00—Heterocyclic compounds containing 1,3-oxazole or hydrogenated 1,3-oxazole rings
    • C07D263/02—Heterocyclic compounds containing 1,3-oxazole or hydrogenated 1,3-oxazole rings not condensed with other rings
    • C07D263/04—Heterocyclic compounds containing 1,3-oxazole or hydrogenated 1,3-oxazole rings not condensed with other rings having no double bonds between ring members or between ring members and non-ring members
    • C07D263/06—Heterocyclic compounds containing 1,3-oxazole or hydrogenated 1,3-oxazole rings not condensed with other rings having no double bonds between ring members or between ring members and non-ring members with hydrocarbon radicals, substituted by oxygen atoms, attached to ring carbon atoms
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P20/00—Technologies relating to chemical industry
    • Y02P20/50—Improvements relating to the production of bulk chemicals
    • Y02P20/55—Design of synthesis routes, e.g. reducing the use of auxiliary or protecting groups

Definitions

  • the present invention relates to a novel sphingosine analogue, which is useful as an intermediate for syntheses of TKR1785's and their derivatives useful as drugs for the treatment of fungal infections, allergic diseases, etc., and also as an intermediate for syntheses of novel sphingolipid derivatives.
  • the present invention also relates to a process for production of a novel sphingolipid.
  • Sphingosine is a compound having the chemical formula shown in the general formula described below, in which Y 1 is hydrogen. It is known that various sphingolipids having sphingosine as a constituent are widely distributed in the living body including on the surface of cell membranes of cells in the nervous system. Also we know glycosphingolipids binding one or several kinds of sugars as Y 1 via a glycoside bond to a ceramide having a fatty acid bound to the amino group of sphingosine via a peptide bond, and sphingophospholipids, including sphingomyelin, binding a phosphoric acid and a base such as choline or ethanolamine as Y 1 to the above-mentioned ceramide.
  • a sphingolipid is one of the lipids having important roles in the living body.
  • lipidosis which is caused by accumulation of a specified sphingolipid in the body concomitant with the abnormalities in the metabolic pathways due to respiration deficiency and others.
  • Attractive effects of sphingolipids present on the cell membranes include functions in the regulation of cell growth and discrimination of each cells; functions in the developments and differentiation; functions in nerves; involvement in the infections and malignancy of cells; and others. Lots of physiological roles of such effects remain to be solved.
  • ceramide a derivative of sphingosine, has an important role in the mechanism of cell signal transduction is indicated, and studies about its effects on apoptosis and cell cycle have been actively performed.
  • Fungi and plants have sphingolipids and the major sphingosine contained in these organisms has the formula described below. It is known that these lipids have important roles in the cell growth of fungi and plants, but details of the roles remain to be solved.
  • derivatives of sphingolipids and their related compounds exhibit a variety of biological activities through inhibition or activation of the metabolism pathways. These compounds include inhibitors of protein kinase C, inducers of apoptosis, immuno-suppressive compounds, antifungal compounds, and the like. Substances having these biological activities are expected to be useful compounds for various diseases.
  • the present invention intends to give a novel sphingosine analogue that is useful as an intermediate for synthesis of a novel lipid derivative, such as sphingolipid derivatives and the like, capable of controlling the function of sphingolipid.
  • novel biologically active compounds In the course of a search for novel biologically active compounds, the inventors isolated lots of microorganisms, obtained biologically active compounds produced by the microorganisms, and studied on the biological properties. We discovered novel biologically active compounds TKR1785' s, which were active against pathogenic fungi including Candida , Aspergillus , Cryptococcus and Malassezia in the culture broth of a strain belonging to Penicillium sp. The inventors also found that the TKR1785's inhibit enzymes involved in allergic reactions.
  • TKR1785's are compounds shown in the following general formula (II). TKR1785's described above include TKR1785-I shown as the following formula (IIa) and TKR1785-II (IIb).
  • the inventors succeeded in preparation of novel sphingosine analogues represented by the following formula (III) by hydrolysis of TKR1785's described above. Furthermore they revealed that the compounds are useful intermediates for synthesis of TKR1785's.
  • Q 1 and Q 2 which are the same or different each other, are hydrogen, alkyl groups having 1-4 of carbon atoms, acyl groups having 2-5 of carbon atoms, or protecting groups of the amino group, and Q 3 is a hydrogen or a protecting group of the hydroxyl group; or Q 2 and Q 3 make up an isopropylidene group and Q 1 is a hydrogen or a protecting group of the amino group.
  • Q 4 and Q 5 which are the same or different each other, are hydroxyl groups, acyl groups having 2-5 of carbon atoms, -O-Q 6 , or hydrogen; or Q 4 and Q 5 make up a covalent bond.
  • Q 6 is a protecting group of the hydroxyl group.
  • X 1 is -COOH, -CONH 2 , -CO-Q 7 , -CH 2 OH, or -CH 2 O-Q 8 .
  • Q 7 is a protecting group of the carboxyl group, and Q 8 is a protecting group of the hydroxyl group.
  • Sphingosine analogues of the present invention are represented by the general formula (I) described above.
  • the above alkyl group having 1-4 of carbon atoms is not particularly restricted, but includes, for example, methyl, ethyl, propyl, i-propyl, n-butyl, t-butyl group, and the like.
  • acyl group having 2-5 of carbon atoms is not particularly restricted, and includes, for example, acetyl, propionyl, butyryl, valeryl group, and the like.
  • the protecting group of the above amino group is not particularly restricted, but includes, for example, t-butoxycarbonyl (Boc), trichloroethoxycarbonyl (Troc) group, and the like.
  • the protecting group of the above hydroxyl group is not particularly restricted, but includes, for example, benzyl (Bzl), acetyl, methyl, trimethylsilyl group, and the like.
  • Q 7 described above is a protecting group of the carboxyl group.
  • the protecting group of the above carboxyl group is not particularly restricted, but includes, for example, a phenacyl (Pac) group, Bzl group, and the like.
  • Q 6 and Q 8 described above are protecting groups of the hydroxyl group.
  • the protecting group of the above hydroxyl group is not particularly restricted, but includes, for example, those described above.
  • Sphingosine analogues described above are included in a compound represented by the general formula (I) described above and include, for example, the compounds shown in Table 1 described below.
  • the compound represented by the above formula (III), which is shown in Table 1 as the compound (1), can be converted to an acyl derivative of the hydroxyl or amino group by means of a conventional method using acid anhydride, acid chloride, or the like.
  • the compound represented by the above formula (III) can be converted to an N-alkylated derivative of the amino group by using sodium hydride and alkyl iodide.
  • the compound represented by the above formula (III) can be converted to an amide by methylation of the carboxyl group followed by ammonolysis, or to an alcohol by reduction using lithium alminium hydride (LiAlH 4 ), sodium borohydride (NaBH 4 ), or the like.
  • the compound represented by the above formula (III) can be converted to a compound shown by the general formula (I) except for the compound shown by the above formula (III) by means of a selective modification of a specified functional group selected from the hydroxyl, amino, or carboxyl group, which the compound represented by the above formula (III) has, through selective reaction or use of an appropriate protecting group.
  • various protecting groups which are often used for the peptide synthesis can suitably be available.
  • Such protecting groups include protecting groups of the amino group, protecting groups of the carboxyl group, or protecting groups of the hydroxyl group described above.
  • the protecting group described above is respectively removed in need by a corresponding known elimination reaction or its applied elimination reaction, and an objective compound is obtained.
  • the elimination reaction carried out as described above can make easily a selective modification.
  • a selective modification of the amino group can be carried out by protection of the amino group by a Boc group, protection of the hydroxyl group by an acetyl group, protection of the carboxyl group by a methyl group, standing at an acidic condition to remove and eliminate the Boc group selectively, formation of a peptide bond with an organic acid, and alkali hydrolysis thereafter; and a compound in which only the amino group is modified selectively is obtained.
  • a compound having a hydroxyl group instead of the carboxyl group is used as a starting material and the hydroxyl group is protected by acyl group, a ceramide analogous compound can be obtained.
  • the compound represented by the above formula (III) can be produced by hydrolysis of TKR1785's represented by the above general formula (II) such as TKR1785-I or TKR1785-II.
  • the composition can be obtained by treatment of TKR1785-I shown as the above formula (IIa) with acid hydrolysis, e.g. carrying out the decomposition under the condition of 6N HCl, at 110°C for over night or the like which is used for the hydrolysis of the peptide bond, followed by neutralization of the reaction solution and being adjusted to alkali.
  • the compound prepared is isolated by neutralization of the reaction solution again, extraction with an organic solvent such as chloroform, a mixture of chloroform/methanol or the like, and if necessary, further purification using an absorption chromatography using silica gel or a reversed phase partition chromatography using a chemical-bonded silica gel.
  • the lactone represented by the below formula (IV) can be obtained when TKR1785-I is subjected to acid hydrolysis under the condition similar to that described above, concentration and purification.
  • this compound is available to introduce Boc groups to the amino group alone or both of the amino and hydroxyl groups by Boc derivatization. Alkali hydrolysis thereafter leads to synthesize one compound represented by the above general formula (I).
  • a compound having a double bond between carbon 5 and carbon 6, such as the compound (10) shown in Table 1 described below can be easily obtained from the lactone shown above as the formula (IV) through dehydration by treatment with sulfuric acid or the reaction with thionyl chloride in pyridine, and following alkali hydrolysis.
  • the compound having a hydroxyl group as Q 4 of the above general formula (I) can be obtained by direct introduction of a hydroxyl group to the obtained dehydration product of the above formula (IV) treating with concentrated sulfuric acid, or by alkali hydrolysis after its epoxidation by reduction.
  • TKR1785's described above are prepared by culturing a strain producing TKR1785's and belonging to Penicillium sp., and isolating them from the cultured broth thereafter.
  • the strain useful to produce TKR1785's described above is exemplified by Penicillium sp. TKR1785 (referred as "strain TKR1785" thereafter). That is, strain TKR1785 is inoculated into a nutrient medium and cultured in liquid to obtain TKR1785's described above.
  • the culture described above is carried out at 15 to 25°C preferably, and the incubation for 3 to 11 days usually gives a sufficient production.
  • TKR1785's accumulated in the cultured product are obtained by purification utilizing their physicochemical and biological properties.
  • the purification described above includes a method using high performance liquid chromatography, in which a chemical-bonded silica gel including octadecyl, octyl, or phenyl group, a porus-polymer gel, or the like is used.
  • the mobile phase includes an aqueous organic water-soluble solvent, for example, aqueous methanol, aqueous acetonitrile, or the like.
  • Sphingosine analogues of the present invention represented by the above general formula (I) are useful as intermediates of syntheses of TKR1785's or their derivatives.
  • the compound represented by the above formula (III) is able to be used as an intermediate of synthesis of TKR1785-I or its derivative.
  • the compound represented by the above formula (I) is useful to use syntheses of various sphingolipid analogues as a sphingosine analogous lipid.
  • a starting material which has an amino group and three hydroxyl groups respectively protected by different protecting groups is used, and is selectively removing the protecting group of amino group, binding a fatty acid via a peptide bond, and removing the protecting group of hydroxyl groups.
  • the obtained compound (V) described below can be used to synthesize a sphingoglycolipid which has a monosaccharide such as galactose or glucose, or an oligosaccharide at the position of Q 8 of the compound shown as the above formula (I).
  • a sphingoglycolipid which has a monosaccharide such as galactose or glucose, or an oligosaccharide at the position of Q 8 of the compound shown as the above formula (I).
  • Q 3 , Q 5 , and Q 8 are protected by protecting groups which can be removed under different conditions, the protecting group of Q 8 is selectively removed to allow to use for synthesis of a sphingoglycolipid analogue.
  • Y 2 is an acyl group of a fatty acid such as myristoyl (C14:0), palmitoyl (C16:0), stearoyl (C18:0), oleoyl(C18:1), or lignoceroyl (C24:0) group.
  • a fatty acid such as myristoyl (C14:0), palmitoyl (C16:0), stearoyl (C18:0), oleoyl(C18:1), or lignoceroyl (C24:0) group.
  • the sphingosine analogues of the present invention are immunosuppressive and toxic to tumor cells and have a medical use.
  • TKR1785 strain From a slant culture of TKR1785 strain (FERM BP-5788), a loop was taken to inoculate a 500 ml conical flask containing 100 ml of a liquid medium [Difco yeast nitrogen base 0.67% (w/v) and glucose 2.0% (w/v)] and cultured under shaking at 25°C for 5 days to provide a seed culture. A 1.0 ml portion of this seed culture was inoculated into 18 conical flasks of 500 ml capacity each containing 125 ml of the above liquid medium and cultured under shaking (220 rpm) at 25°C for 9 days. The resulting culture was centrifuged to separate a supernatant and a cellular fraction.
  • the cellular fraction was well mixed and extracted with 1 L of methanol and the extract was concentrated under reduced pressure.
  • the residue was diluted with 300 ml of water and, after sufficient mixing, adjusted to pH 2.
  • 300 ml of ethyl acetate was added and mixed thoroughly for washing with ethyl acetate.
  • the aqueous layer was adjusted to pH 9 and extracted with 300 ml of ethyl acetate.
  • the extract was concentrated under reduced pressure to provide 52 mg of a residue.
  • JMS-DX302 Mass Spectrometer (Jeol Ltd.) was used for mass spectrometry.
  • JNM-A500 Nuclear Magnetic Resonance Spectrometer (Jeol Ltd.) was used for 1 H-NMR spectrometry (in deuterated dimethyl sulfoxide, reference: deuterated dimethyl sulfoxide) and 13 C-NMR spectrometry (in deuterated dimethyl sulfoxide, reference: deuterated dimethyl sulfoxide).
  • UV-250 self-recording spectrophotometer (Shimadzu) was used.
  • L-8500 (Hitachi) was used for amino acid analysis.
  • TKR1785-I The physicochemical properties of TKR1785-I are as follows.
  • FAB-MS of the purified white powder of fraction-I obtained by high performance liquid chromatography and concentration under reduced pressure shows m/z 518 [M+H] + .
  • Recording of 1 H-NMR and 13 C-NMR spectra and analysis thereof indicate that this substance has 27 carbon atoms and 3 nitrogen atoms.
  • the 1 H-NMR spectrum and 13 C-NMR spectrum are presented in Fig. 3 and Fig. 4, respectively.
  • the ultraviolet adsorption spectrum of this substance in methanol shows the terminal absorptions represented in Fig. 1.
  • the KBr infrared absorption wave numbers (KBr) are listed below.
  • the IR absorption spectrum of the substance is presented in Fig. 2.
  • TKR1785-I the purified white powder obtained by high performance liquid chromatography and subsequent concentration of fraction I under reduced pressure.
  • TKR1785-I was subjected to reversed phase partition high performance liquid chromatography (HPLC) using LC-10A High performance Liquid Chromatography System (Shimadzu). The high performance liquid chromatography was carried out under the following conditions.
  • TKR1785-II The physicochemical constants of TKR1785-II are as follows.
  • the purified white powder obtained by high performance liquid chromatography and concentration of active fraction II under reduced pressure was found to be TKR1785-II.
  • TKR1785-II was subjected to HPLC analysis using LC-10A High Performance Liquid Chromatography System (Shimadzu). The HPLC conditions were the same as those used in the analysis of TKR1785-I. The analysis revealed that TKR1785-II was eluted in the position indicated in Fig. 8.
  • TKR1785-I was synthesized according to the method shown in Scheme 1. That is, Boc-NH-CH(CH 2 OH)-CH 2 OBzl was used as the starting material to prepare HCl ⁇ H 2 N-CH(CH(CH 3 ) 2 )-CO-NH-CH(CH 2 OAc)-CH 2 OBzl. This compound (3.0 mg) was coupled with compound (9) (3.0 mg), resulting a protected derivative of TKR1785-I (3.9 mg). Removal of the protecting group of the compound by a conventional method gave TKR1785-I as a white powder (1.2 mg).
  • HPLC reversed phase high performance chromatography
  • the final product obtained was dissolved in methanol at the concentration of 1 mg/ml, tested for the antimicrobial activity against C. albicans TIMM 0136 using the medium composed of yeast nitrogen base (Difco) 0.67%, glucose 1%, and agar 1.5% by paper disk diffusion method (20 ⁇ l/disk of 6 mm in diameter), and showed a prominent growth inhibitory activity.
  • the present invention provides a novel lipid, which is useful as an intermediate for syntheses of TKR1785's and their derivatives useful as drugs for the treatment of fungal infections, allergic diseases, etc., and also as an intermediate for syntheses of novel sphingolipid derivatives, and a process thereof.

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Acyclic And Carbocyclic Compounds In Medicinal Compositions (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
  • Optical Head (AREA)
  • Steroid Compounds (AREA)
  • Saccharide Compounds (AREA)
  • Heterocyclic Carbon Compounds Containing A Hetero Ring Having Nitrogen And Oxygen As The Only Ring Hetero Atoms (AREA)
EP98907195A 1997-03-12 1998-03-12 Analogues de sphingosine Expired - Lifetime EP1002790B1 (fr)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
JP7909497 1997-03-12
JP7909497 1997-03-12
JP26796997 1997-09-11
JP26796997 1997-09-11
PCT/JP1998/001038 WO1998040349A1 (fr) 1997-03-12 1998-03-12 Analogues de sphingosine

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EP1002790A1 true EP1002790A1 (fr) 2000-05-24
EP1002790A4 EP1002790A4 (fr) 2004-09-08
EP1002790B1 EP1002790B1 (fr) 2005-12-28

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US (1) US6235912B1 (fr)
EP (1) EP1002790B1 (fr)
JP (1) JP4001929B2 (fr)
KR (1) KR100559817B1 (fr)
AT (1) ATE314342T1 (fr)
AU (1) AU6310198A (fr)
DE (1) DE69832987T2 (fr)
WO (1) WO1998040349A1 (fr)

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DE102004025000A1 (de) * 2004-05-21 2005-12-08 Bayer Technology Services Gmbh Verfahren zur Herstellung von chemischen und pharmazeutischen Produkten mit integrierter Mehrsäulen-Chromatographie
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AU6310198A (en) 1998-09-29
KR100559817B1 (ko) 2006-03-10
US6235912B1 (en) 2001-05-22
DE69832987T2 (de) 2006-07-27
ATE314342T1 (de) 2006-01-15
JP4001929B2 (ja) 2007-10-31
WO1998040349A1 (fr) 1998-09-17
DE69832987D1 (de) 2006-02-02
EP1002790B1 (fr) 2005-12-28
KR20000076073A (ko) 2000-12-26

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